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23358421 = 1071991097
BaseRepresentation
bin101100100011…
…0101111010101
31121221201201201
41121012233111
521434432141
62152352501
7402354232
oct131065725
947851651
1023358421
1112204589
1279a5731
134abac68
143160789
1520b6031
hex1646bd5

23358421 has 8 divisors (see below), whose sum is σ = 23716800. Its totient is φ = 23002848.

The previous prime is 23358403. The next prime is 23358431. The reversal of 23358421 is 12485332.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23358421 - 29 = 23357909 is a prime.

It is a super-2 number, since 2×233584212 = 1091231663226482, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23358421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23358431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20745 + ... + 21841.

It is an arithmetic number, because the mean of its divisors is an integer number (2964600).

Almost surely, 223358421 is an apocalyptic number.

It is an amenable number.

23358421 is a deficient number, since it is larger than the sum of its proper divisors (358379).

23358421 is a wasteful number, since it uses less digits than its factorization.

23358421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1403.

The product of its digits is 5760, while the sum is 28.

The square root of 23358421 is about 4833.0550379651. The cubic root of 23358421 is about 285.8563389209.

The spelling of 23358421 in words is "twenty-three million, three hundred fifty-eight thousand, four hundred twenty-one".

Divisors: 1 107 199 1097 21293 117379 218303 23358421